unleashed, goldfish can grow up to 10 times
Scientists have discovered a terrible secret:. Goldfish in any case can not be released into the wild. Citizens are recommended to either return the fish to the pet store, or in the freezer to kill.
Normal goldfish (Carassius auratus) can become a monster. This claim Australian researchers who have studied the behavior caught in the wild conditions of goldfish. As a result, scientists have concluded that the voluntary goldfish pose a threat to the ecology.
Over the years, scientists have observed for a population of goldfish, which are about 12 years ago were released into the river Vassa. The study found that daily fish moved an average of 300 meters of the riverbed. One of the fish registered for the year overcame a distance of over 230 km, including 5.4 km in one day.
Also, scientists have documented that during spawning goldfish prefer to move to standing waters connected with the river channels. According to researchers, these ducts can be a convenient place for mass fish catches to control their population.
In addition, for the time spent in the river, aquarium fish have grown markedly. Some individuals have weighed more than a kilogram, and the biggest fish had a weight of 1.9 kg. This led scientists to believe that in the wild goldfish are omnivores, and therefore may cause significant harm to other species of fish, destroying their food and spreading the infection. We also know that they pick up from the bottom mud and destroy algae.
Scientists note that the residents better not to let the fish in the water. If you are bored goldfish, then take them back to the pet store or kill in the freezer.
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